Acer X1140a Users Guide

							11
EnglishHow to Optimize Image Size and Distance
Consult the table below to find the optimal image sizes achievable when the 
projector is positioned at a desired distance from the screen.
•X1140/X1140A/X1240
If the projector is 3 m from the screen, good image quality is possible for image 
sizes between 72 and 79.
Note: Remind as below figure, the space of 126 cm height is 
required when the projector is located at 3 m distance.
Desired
Distance 
(m)
< A >Minimum Screen Size (Min zoom) Maximum Screen Size (Max zoom)
Diagonal 
(inch)
< B >W (cm) x H (cm)From base to 
top of image 
(cm)
< C >Diagonal 
(inch)
< B >W (cm) x H (cm)From base to 
top of image 
(cm) 
< C >
1 24 49 x 37 38 26 54 x 40 42
1.5 36 74 x 55 58 40 81 x 60 64
2 48 98 x 74 77 53 108 x 81 85
2.5 60 123 x 92 96 66 134 x 101 106
372147 x 11011579161 x 121126
3.5 84 172 x 129 134 93 188 x 141 149
4 96 196 x 147 154 106 215 x 161 170
4.5 108 221 x 165 173 119 242 x 181 190
5 120 245 x 184 192 132 269 x 202 211
6 144 294 x 221 230 159 323 x 242 254
7 168 343 x 257 269 185 376 x 282 296
8 192 392 x 294 307 212 430 x 323 339
9 216 441 x 331 346 238 484 x 363 381
10 241 490 x 368 386 265 538 x 403 424
11 265 539 x 404 424 291 591 x 444 466
12 289 588 x 441 462 318 645 x 484 509
Zoom Ratio: 1.1 x
3 m
Desired distance
Height:
115 cmHeight:
126 cm
From 
base to 
top of 
image
Max 
s
c
re
en
 si
ze
M
in
 s
c
re
e
n
 si
ze
7279
Downloaded From projector-manual.com Acer Manuals 
						

							12
English
•X1340W
If the projector is 3 m from the screen, good image quality is possible for image 
sizes between 84 and 93.
Note: Remind as below figure, the space of 142 cm height is 
required when the projector is located at 3 m distance.
Desired
Distance 
(m)
< A >Minimum Screen Size (Min zoom) Maximum Screen Size (Max zoom)
Diagonal 
(inch)
< B >W (cm) x H (cm)From base to 
top of image 
(cm)
< C >Diagonal 
(inch)
< B >W (cm) x H (cm)From base to 
top of image 
(cm) 
< C >
1 28 61 x 38 43 31 67 x 42 47
1.5 42 91 x 57 64 46 100 x 63 70
2 56 121 x 76 85 62 133 x 83 94
2.5 70 152 x 95 107 77 167 x 104 117
384182 x 11412893200 x 125142
3.5 98 212 x 133 149 108 233 x 146 165
4 113 242 x 152 172 124 267 x 167 189
4.5 127 273 x 170 194 139 300 x 188 212
5 141 303 x 189 215 155 333 x 208 236
6 169 364 x 227 258 186 400 x 250 283
7 197 424 x 265 300 217 467 x 292 331
8 225 485 x 303 343 248 533 x 333 378
9 253 545 x 341 386 279 600 x 375 425
10 281 606 x 379 428 310 667 x 417 472
11 310 667 x 417 472 340 733 x 458 518
12 338 727 x 455 515 371 800 x 500 565
Zoom Ratio: 1.1 x
3 m
Desired distance
Height:
128 cmHeight:
142 cm
From 
base to 
top of 
image
Ma
x 
sc
r
ee
n
 s
i
ze
Mi
n 
s
c
re
en
 s
i
ze
8493
Downloaded From projector-manual.com Acer Manuals 
						

							13
EnglishHow to Get a Preferred Image Size by Adjusting 
Distance and Zoom
The table below shows how to achieve a desired image size by adjusting either 
the position or the zoom ring.
•X1140/X1140A/X1240
To obtain an image size of 70, set the projector at a distance between 2.6 m 
and 2.9 m from the screen and adjust the zoom level accordingly.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
< A >W (cm) x H (cm)Max zoom
< B >Min zoom
< C >From base to top of 
image < D >
30 61 x 46 1.2 48
40 81 x 61 1.5 1.7 64
50 102 x 76 1.9 2.1 80
60 122 x 91 2.3 2.5 96
70142 x 1072.62.9112
80 163 x 122 3.0 3.3 128
90 183 x 137 3.4 3.7 144
100 203 x 152 3.8 4.2 160
120 244 x 183 4.5 5.0 192
150 305 x 229 5.7 6.2 240
180 366 x 274 6.8 7.5 288
200 406 x 305 7.6 8.3 320
250 508 x 381 9.4 10.4 400
300 610 x 457 11.3 480
Zoom Ratio: 1.1 x
Desired distance
Height:
112 cm
From base 
to top of 
image70
Desired
image size
2.6 m
2.9 m
Downloaded From projector-manual.com Acer Manuals 
						

							14
English
•X1340W
To obtain an image size of 70 set the projector at a distance between 2.3 m 
and 2.5 m from the screen and adjust the zoom level accordingly.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
< A >W (cm) x H (cm)Max zoom
< B >Min zoom
< C >From base to top of 
image < D >
30 65 x 40 1.1 46
40 86 x 54 1.3 1.4 61
50 108 x 67 1.6 1.8 76
60 129 x 81 1.9 2.1 91
70151 x 942.32.5107
80 172 x 108 2.6 2.8 122
90 194 x 121 2.9 3.2 137
100 215 x 135 3.2 3.6 152
120 258 x 162 3.9 4.3 183
150 323 x 202 4.8 5.3 229
180 388 x 242 5.8 6.4 274
200 431 x 269 6.5 7.1 305
250 538 x 337 8.1 8.9 381
300 646 x 404 9.7 457
Zoom Ratio: 1.1 x
Desired distance
Height:
107 cm
From base 
to top of 
image70
Desired
image size
2.3 m
2.5 m
Downloaded From projector-manual.com Acer Manuals 
						

							15
EnglishUser Controls
Installation Menu
The Installation menu provides an onscreen display (OSD) for projector 
installation and ma intenance. Use the OSD only when the message No 
signal is displayed on the screen. 
1 Turn on the projector by pressing   (POWER) on the control panel or  remote control.
2 Press MENU on the control panel  or remote control to launch the 
OSD for projector install ation and maintenance.
3 The background pattern acts as a guide to adjusting the calibration  and alignment settings, such as sc reen size and distance, focus and 
more.
4 The Installation menu incl udes the following options:
• Projection mode
• Projection Location
• Auto keystone
• Manual keystone
• Language settings
• Reset to factory default functions
Use the up and down arrow keys to select an option, the left and right arrow keys to 
adjust selected option settings, and the right arrow key to enter a submenu for 
feature setting. The new settings will be  saved automatically upon exiting the menu.
5 Press MENU anytime to exit the menu and return to the Acer 
welcome screen.
 
 
 
Downloaded From projector-manual.com Acer Manuals 
						

							16
English
Acer Empowering Technology
Empowering KeyAcer Empowering Key provides four 
Acer unique functions: Acer eView 
Management, Acer eTimer 
Management, Acer ePower 
Management and Acer e3D 
Management. Press   repeatly to 
cycle through these functions.
Acer eView ManagementPress   to launch Acer eView 
Management.
Acer eView Management is for 
display mode selection. Please refer to 
the Onscreen Display (OSD) Menus 
section for more details.
Acer eTimer ManagementPress   to launch Acer eTimer 
Management.
Acer eTimer Management provides 
the reminding function for 
presentation time control. Please refer 
to the Onscreen Display (OSD) Menus 
section for more details.
Acer ePower ManagementPress   to launch Acer ePower 
Management.
Acer ePower Managementprovides 
you one shortcut to save the lamp and 
projector’s life. Please refer to the 
Onscreen Display (OSD) Menus 
section for more details.
Acer e3D ManagementPress   to launch Acer e3D 
Management.
Acer e3D Management provides you 
one shortcut to adjust 3D settings. 
Please refer to the Onscreen Display 
(OSD) Menus section for more details.
Downloaded From projector-manual.com Acer Manuals 
						

							17
EnglishOnscreen Display (OSD) Menus
The projector has multilingual Onscreen Display (OSD) menus that allow 
you to make image adjustments and change a variety of settings.
Using the OSD menus
•To open the OSD menu, press MENU on the control panel or remote 
control.
•When the OSD is displayed, use   to select an item in the main menu. 
After selecting the desired main menu item, press   to enter a submenu 
for feature setting.
•Use   to select the desired item and adjust the settings by using 
.
•Select the next item to be adjusted in the submenu and adjust as described 
above.
•Press MENU on the control panel or remote control, the screen will 
return to the main menu.
•To exit the OSD menu, press MENU on the control panel or remote 
control again. It will close and the projector will automatically save the 
new settings.
Main menu
Submenu
Setting
Downloaded From projector-manual.com Acer Manuals 
						

							18
English
Color
Display ModeThere are many factory presets optimized for various types 
of images.
•Bright: For brightness optimization.
•Presentation: For meeting presentation with higher 
brightness.
•Standard: For common environment.
•Video: For playing video in a bright environment.
•Picture: For graphic picture.
•Game: For game content.
•Education: For education environment.
•User: Memorize user’s settings.
Wall ColorUse this function to choose a proper color according to the 
wall. There are several choices, including White, Light 
Yellow, Light Blue, Pink and Dark Green. It will 
compensate the color deviation due to the wall color to 
show the correct image tone.
BrightnessAdjusts the brightness of the image.
•Press   to darken the image.
•Press   to lighten the image.
ContrastControls the degree of difference between the lightest 
and darkest parts of the picture. Adjusting the contrast 
changes the amount of black and white in the image.
•Press   to decrease the contrast.
•Press   to increase the contrast.
Downloaded From projector-manual.com Acer Manuals 
						

							19
English
Note: Saturation and Tint functions are not supported under computer 
mode.
Saturation Adjusts a video image from black and white to fully 
saturated colors.•Press   to decrease the 
amount of color in the 
image.
•Press   to increase the amount of color in the 
image.
Tint Adjusts the color balance of red and green.
•Press   to increase the amount of green in the 
image.
•Press   to increase the amount of red in the image.
Color 
Temperature Adjusts the color temperature. At higher color 
temperatures, the screen looks colder; at lower color 
temperatures, the screen looks warmer.
Dynamic Black If turned on, the projector dynamically adjusts the power 
consumption of the lamp according to the brightness of 
the image being projected. When projecting darker 
images the power consumption will be reduced and the 
contrast of the image will also be enhanced.
Gamma Effects the representation of dark scenery. With greater 
gamma value, dark scenery will look brighter.
Downloaded From projector-manual.com Acer Manuals 
						

							20
English
Image
Projection 
Mode• Front: The factory default setting.
• Rear: Reverses the image so you can project from 
behind a translucent screen.
Projection 
Location
• Auto: Automatically adjusts projection location of 
image.
• Desktop
• Ceiling: Turns the image upside down for ceiling-
mounted projection.
Aspect RatioUse this function to choose your desired aspect ratio.
•Auto: Keeps the image with original width-height ratio 
and maximizes the image to fit native horizontal or 
vertical pixels.
•Full (X1340W): The image will be displayed making full 
use of the horizontal and vertical pixels.
•4:3: The image will be scaled to fit the screen and 
displayed using a 4:3 ratio.
•16:9: The image will be scaled to fit the screen and 
displayed using a 16:9 ratio.
•L.Box (X1340W): Keeps the original signal aspect ratio 
and zooms in by 1.333 times.
Auto KeystoneAutomatically adjusts image distortion caused by tilting 
projection (±40 degrees).
Downloaded From projector-manual.com Acer Manuals